Developer for Initial Build-Out

Title: Full-Stack SaaS Developer — React + Supabase + Stripe + Anthropic Claude API Description: We are building FreightSignal — an AI-powered freight sales intelligence platform for logistics professionals. The core product is already live at freightsignal.net with a working signal scanner, territory map, partner network page, and marketing site. We need a full-stack developer to build Phase 2: the complete SaaS dashboard with auth, payments, and core product features. What you'll build: User authentication and account management (Supabase Auth, single session security, login notifications) Signal intelligence dashboard — HOT/WARM/WATCH daily lead feed with AI-written outreach per signal Stripe subscription billing ($34/mo and $149/mo plans, 14-day trial, customer portal) Territory configuration — city radius, freight mode, cargo verticals, score threshold Simple pipeline tracker — 6 stages, CSV import, one-click Excel export FreightSignal Connect tab — exclusive partner network, document uploads, admin approval, AI matching Territory intelligence map integration — geofence alerts, trip outreach mode, mobile responsive Customs push engine — CBP AMS data processing, new importer signal cards Tech stack required: React + Tailwind CSS, Python FastAPI or Node.js Express, Supabase (PostgreSQL + Auth + Storage), Stripe, Anthropic Claude API, Netlify + Railway or Render, Leaflet.js + CartoDB What's already built: Live marketing site, working Python signal scanner (120+ RSS feeds), territory map HTML, partner network page, Privacy Policy. You are building the dashboard and SaaS infrastructure around these. What we're looking for: Strong portfolio showing React + Supabase + Stripe SaaS builds Experience with Anthropic or OpenAI API integration Ability to work milestone-based — not open-ended hourly Interest in ongoing work — Phase 3 features available after Phase 2 launch Clear English communication — you will work directly with the founder Budget: $9,500–$17,000 fixed price (milestone-based payments) Timeline: 8–12 weeks Engagement: Looking for a long-term partner, not a one-time hire To apply: Share relevant portfolio links showing SaaS work with auth, billing, and API integrations. Include your fixed price quote and estimated timeline. Detailed technical brief shared after initial screening.